Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mao chat moi snippets" » "cao chat moi snippets", "tao chat moi snippets", "bao chat moi snippets", "mao nhat moi snippets", "mao thuat moi snippets", "mao cho moi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("mao chat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mao chat moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mao chat moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mao chat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.